Invention Grant
US07684376B2 Search method for radio LAN terminal, search system for radio LAN terminal using the search method, and computer readable medium having search program for radio LAN terminal 有权
无线LAN终端的搜索方法,使用搜索方法的无线LAN终端的搜索系统,以及具有无线LAN终端的搜索程序的计算机可读介质

  • Patent Title: Search method for radio LAN terminal, search system for radio LAN terminal using the search method, and computer readable medium having search program for radio LAN terminal
  • Patent Title (中): 无线LAN终端的搜索方法,使用搜索方法的无线LAN终端的搜索系统,以及具有无线LAN终端的搜索程序的计算机可读介质
  • Application No.: US11327322
    Application Date: 2006-01-09
  • Publication No.: US07684376B2
    Publication Date: 2010-03-23
  • Inventor: Shoichi Akaiwa
  • Applicant: Shoichi Akaiwa
  • Applicant Address: JP Tokyo
  • Assignee: Seiko Epson Corporation
  • Current Assignee: Seiko Epson Corporation
  • Current Assignee Address: JP Tokyo
  • Agency: Oliff & Berridge, PLC
  • Priority: JP2005-003422 20050111
  • Main IPC: H04W4/00
  • IPC: H04W4/00 H04B17/00
Search method for radio LAN terminal, search system for radio LAN terminal using the search method, and computer readable medium having search program for radio LAN terminal
Abstract:
A search system for a radio LAN terminal includes: plural terminals; and a search computer that searches for connectable terminals out of the plural terminals in a radio LAN, wherein the search computer includes: a communication unit provided to be capable of changing transmission power of radio communication for performing radio communication via the radio LAN with the plural terminals; and a storage unit that stores a search list in which identification information including identifiers for identifying the searched terminals are listed according to an order of the searched terminals, the plural terminals include terminal communication units for performing radio communication with the search computer via the radio LAN, the search computer broadcasts a probe request for searching for the terminals by minimizing a set value of the transmission power of the radio communication of the communication unit, the terminals having received the probe request transmit response signals including the identification information of the terminals from the terminal communication units to the search computer, the search computer checks whether the response signals received are response signals from new ones of the terminals not stored in the search list, the search computer adds, when the response signals are response signals from the new terminals, the identification information included in the response signals to the search list of the storage unit, and the search computer performs, when the response signals are not response signals from the new terminals or the response signals are not received, a series of search operations starting from the probe request by increasing the set value of the transmission power of the radio communication of the communication unit.
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